Assionob



1 5 whereby the amount ofair which is Reuma Apr. 14, 1931 um'nsny lSTATES Rie.ivl8,046

PATENT. oFr-lca m .1. nLacx, or muon', mas, assxeuon To murmur mit wonxs coxrm. or melon', mas, a conronarrron or 'rms ort-wm rma origini n. 1,193,993. ama aufm xa, me, serial n. 970.144, mea Apru 1r.' 199s. appunti m reime mea october a1. is'so. semi n. 490,317.

' This invention relates to oil well pumps-and more particularly to that of pump wherein the oil is lifted from t e well vby use of certain of the elements em loyed in the structure described in said app 'cation while preserving the operative features thereof.

A further object of the invention is to provide a device of this character havin mean itte as well as the pressure of Asuch air may be controlled.

A further ob'ect ofthe invention is to provide a novel an improved packing and guide element for use in such devices.

A still further object of the invention is to provide a noz'zleelement associated with a valve controlling the admission of air or 'u gas' employed to lift the fluid from the well.

These and other obects I attain by the construction shown in t e accompanying drawings, wherein for the purpose of illustration is shown a preferred embodiment of my yinvention and wherein Figure 1 is a vertical sectional view through one of the nozzles of a pump constructed in accordance with my invention;

Fig. 2 is a section on the line 2- 2'of Figure 1.

Refe now more particular] to the ltzhe numeral 10 genera yv desi nates a fitting having a bore 11. Within thipcokre at the lower epd thereof its1l dis a c va ve organiza ion, er y y esignated at 12. The upper enden illustrated, is preferably formed in sections. The lower end of the body is exteriorly threaded for engagement with tubing ATA which may lead to a similar nozzle arranged at flower level. The upper end of this body is threaded for engagementwith a sleeve 15,

f ports 19 which communicate of the bore is Y interiorly threaded, as at 13, for the reception `of the lower end of the tube 14 and which, as

extending tubing T which may connect to ahnozzle arranged thereabove or to the disc ar Thgeexteriorl threaded portionk of the up- -per end of the tting 10 is provided withan annular ing cham r which communicates with `vertically extending ports, 18 opening throu h the upper end of t e fitting and between the tube 14 and the inner wall 'of the sleeve. The

lower end of the sleeve has radiallyextending 17 with the groove t its lower end, the exterior of the sleeve i has rotatably mounted thereon a ring valve, 20 having openings 21 which, by rotatably adjustingthe ring, may be brought either into full register with the ports 19 of the sleeve or. disposed to render available any desired portion of these ports.A y

l This valve may be secured in adjusted oove 17 constituting a distributsitions by any suitable means such as t at l indicated at 22.

vThe threaded portion 16 of the sleeve at its lower end has engaged therewith the ex. teriorly threaded flange 23 of a. guide and' packing member 24, the outer face of which, below the flange, is in spaced relation to the wall of the sleeve. This guide and packing member is vertically adjustable and held' in position bya lock nut 25 andthe inner faces of both the packing member and nut are provided with annular sealing grooves 25* havinghorizontally extending upper walls and lower walls which incline inwardly and' downwardly to meet said u per walls.

Slidable within the guldev and packing member 24 is a nozzle element 26, the upper end offwhich tapers to a point where it closely approximates the outer face of the tube 14, as indicated at 27, and then extends in parallel relation to this tube, so that a narrow annular space 28 is provided through 'which gas or air may pass.V The lower end of thisV nozzle isformed with a valve 29, seat-i upon the upper end of the fitting 10 an closing the ports 18. A spring 30 surrounding the part 24 and engaging against the ange 23 of' this part at its upper end and against the valve-29 at its' lower end may I used to urge the valve to its'seat until a action'of the vspring; and then passes 'into thev space 31 between the tube 14 and the nozzle Y 26. In its escape through the narrow annular passage 28 near the upper end of the tube, it is directed up along the walls of the nozzle. f

In its passage beyond the end of the tube 14, it acts as an ejector, creating a vacuum within the tube 14 which lifts the oil. While I have illustrated the shank or annularl upwardly extending kportion of the valve as being screw-threaded in connection with the nozzle 27, I do not wish to be limited to this as it is obvious that the nozzle 27 might be fixed and the valve sl ide, with relation thereto, but it will be seen that in either case the valve forms a downward continuation of the nozzle in the'sense that there is no decided break of continuity between the nozzle and the valve and thus a passage smooth *andk without obstruction is left for the upward movement of the fluid around the central portion of the tube at the upper end of the nozzle 27. Y

It also causes an intermingling `of this oil with the air, so that the oil in the tube rises and is ejectedtherefrom to a point where it may be picked up by a Vsecond nozzle.

In using the lnstant constructlon, al plu# rality of nozzles are inserted in the oil well tubing at points spaced apart a distance determined by the character of the fluid which is being handled and the pressure which is available in the general manner of operation ldisclosed inmy prior application.

It will be obvious that the sleeve 15 and tube 14 might be formed integrally with the fitting 10, the present construction having been merely adopted as providing for more convenient construction and assembly of the device. The structure, as illustrated, may be very Yreadily and cheaply manufactured and is of such character that it will not read-4 ily get out of adjustment.

Particular attention is called to the ooves 25a, the upper shoulder of each o these grooves being at right angles to the direction of movement of the valve and the lower shoulder being downwardly Therefore, when airis admitted to the valve and it lifts olf the seat, any fluid that may be above the valve, together with the air entering through the ports 18, rushes into ports.

thesegrooves and forms a seal or series of seals which minimize the` paing of air between the packing element. and the exterior of the portion 26, thus forcing theA air to go inside of the nozzle tube 26, that isz into t e space 31. When'a well `is onceput 1n action,

there is always a column of liquid and centrally inclined.

in the well tubing. Therefore, as soon as the air input is discontinued, this column of liquid, due to the form of the grooves 25a andthe packing element'and lock nut, sets back and releases the pressure in the grooves and bears down on the valve 29.v

. This causes the valve to' seatA and as soon.

grooves and the operation is repeated from time to time. It is, therefore, not necessary y with my construction, that is, wit-h the packing and guideelement 23 andI lock nuty 25 formed of the grooves 25a thatthe spring fro 30 be used as the valve will seat without this 't spring. It will be noted also that the guide and packing element 23 and 24 maybe adj usted up or down in the screw-threads 16 to adjustably limit thee'xtent to which the valve may open.V The groove 17 formedin the valve body 10.forms a distributing chamber by which the air which enters at the inlet ports 19 is `distributezl all around and passes out uniformly through the outlet ports'under the valve and u through the space between the nozzle and t e central tube.

Since the construction hereinbefore set forth is capable of a certain ran of change .and modification without materlally departing from the spirit of the invention, I do not limit myself to such s ific structure except as hereinafter claime i vThus while Ihave shown the rts 19 as being formed in the lower end o the sleeve 15,-it is obvious that these orts might extend through the fitting 10 low the lower end of the sleeve and accom lish the same end. It is also obvious that t e sleeve 15 as vwell as the tube 14 might be made in one piece or integral with the fitting 10 and thus the body ofthe nozzle consist of the portion 10 and integral concentric portions 14 and 15.

I claim f 1. A nozzle for oil well umps comprising a body having a bore, a tu e forming an exI tension ofthe upper end of the bore, a nozzl'e element 'surrounding the tube and extendin inward toward the tube to form a conf strlcted s ace immediately around the mouth of the tage, erts for admitting air between the nozzleeFement'and the tube, the lower end of the 'nozzle element havingassociated from said valve being freely movable ough said @Wag ports under pressure of fluid t 2. A nozzle for oil well pumpscomprising` a bod having a bore, a straight upwardly exten 'n tube forming an extension of thev upper en ofr the .bore a nozzle element surrounding the tube and extending inward toward the tube to form aconstricted space laround the mouth of the tube,porta for adnection with tu ing, the fitting havi mitting air between the nozzle element and the tube, the lower endof the nozzle element.

3. A nozzle for oil well pumps comprising' a bodv having a bore, a straight upwardly extending tube forming an extension of the upper end of the bore a nozzle element surrounding the tube'and extending inward toward ythe tube to form a constricted space surrounding the mouth of the tube, ports for admitting air between the nozzle element and the tube, the lower end of the nozzle element havin associated therewith a valve for sealing sai ports, said valve forming an extension of the nozzle element and means regulatin theadmission of air to said ports, said valve ing freely movable upward under pressure of fluid entering through said ports.

4. In a nozzle for oil well pumps a fitting, a sleeve arisin therefrom, the sleeve and yfitting being a apted at opposite ends for connection with tubing, the fitting having a bore, a straight upwardl extending tube forming a continuation o the bore and extending upwardly thnough the sleeve, ports placing the exterior of the sleeve in communication with the lower end of the space be- I tween the tube and sleeve, an annular valve normally closing said ports and disposed within said space and a nozzle associated with said valve and surroundin fthe tube, said nozzle extending upward an inward toward the tube and then straight upward to a point above the tube, the nozzle and valve having the same internal diameter and the nozzle forming an extension of the valve.

5. In a nozzle for oil well umps, a fitting, a sleeve arising therefrom, t e sleeve and fitting being ada ted at opposite ends for conabore, a tube forming a. continuation of t e bore and extending upwardly through the sleeve, ports placing the exterior of the sleeve in communication with the lower end of the space between the tube and sleeve, a valve normally disposed over and closing said ports and disposed within said'space, a nozzle carried by said valve and surrounding the tube, the nozzle extending upward and inward toward the tube and then extending straight upward around the mouth of the tube, and means for 'adjustably regulating the eective area of said ports.

6. In a nozzlefor oil well pumps, a fitting, a sleeve arisin """therefrom, the sleeve and fitting being a apted at opposite ends for connection with tubing, the tting having a bore, a tube forming a continuation of the bore and extending upwardly through the :vertically adjustable guide carried by ports placing sleeve, ports placing the exterior of the. sleeve in communication with the lower end of the space between the tube and sleeve, a valve normallyv closing said ports and disposed within said space, a nozzleassociated with said valve and surrounding the tube, andha t e sleeve and engaging the nozzle and acting to limit the upward movement of the nozzle.

7 In a nozzle for oil well pumps, a fitting, a sleeve arising therefrom, the sleeve and fitting being ada ted at opposite ends for connection with tu ing, the fitting having a bore, a tube forming a continuation of the bore and extending upwardly through the sleeve, the exterior of the sleeve in communication with the lower end of the space between the tube and sleeve, a valve freely movable vertically and normally closing' saidl ports and disposedl within said space, a nozzle associated with said valve and surrounding the tube, and a .guide carried by the sleeve and engaging the nozzle, the lower end of said guide limiting upward movement of the nozzle and valve.- i l l 8. In a nozzle for oil well-pumps, a fitting, a sleeve arising therefrom, the-sleeve and fitting being ada ted at opposite endsffor connection with tu ing, the fitting havin a bore,

a tube forming a continuation of t ebore and extending upwardly through the sleeve', ports placing the exterior of the :sleeve in communicationl with the lower end of the space between the tube and sleeve, a valve normally closing said-ports and ,disposed within said space and a nozzle carried by said valve and surrounding the tube, a guide having at its upper end a flan e engaging the wall of the sleeve, said gui e engaging the nozzle to guide the same.

9. An oil well pump including a fittinga sleeve `extending u ward therefrom, the

sleeve and fitting being adapted at opposite ends for connection with tubing, the sleeve having a bore, a tube forming a continuation of the bore and extending ufpwa-rdly throu h the sleeve, the fitting being ormed to provi e a valve seat exteriorly of the tube and interiorly of lthe sleeve, the fitting being formed tov provide an annular distributing chamber, there being air ports leading into said distributing chamber from the exterior of the fitting, and' ports leading upward through lsaid valve seat, an annular valve resting upon said seat and having an annular upwardly extending portion, a guide adjusti a l y en gedwith said sleeve and through which t e annular upwardl extending portion of the valve passes, s ai guide bein adjustable upon the sleeve to controllably it upward movement of the valve and a nozzle associated with the valve and extending u ward from the valve and surrounding t e central tube. y

10. A nozzle for oil wells including a body 4 a s y 18,040

including a vbody formed to provide a valve chamber having a central bore, an u wardly extending inner tubular portion an a centrally extending outer tubular portion, there s bein a valve seat disposed between these two A f tubu ar portions, the body having a distributing chamber belowvthe valve seat having ports communicating with the exterior of the body, and orts extendinu through 1 the valve seat, a c eck valve in t e ower endV of the central bore, a valve disposed between the tubular portions of the body and normally restin on the seat and having an upwardly exten in tubular portion s aced from the u inner tubu ar ortion ofthe dy, a nozzle spaced outwax'v from the 'inner tubular ortlon and associated with the valve, a pacing Y element adjustablly mounted on the outer tuv bular portion an approximating theupper go tubular portion of said valve, and havlng -iquid holding sealing grooves inl its inner ace.

11. A nozzle for oil well pumps comprising a body having a central` bore, an outer sleeve g5 extending upward therefrom, a tube formin an extension of the upper-end of the bore l ani rconcelitric to the sleeve, a nozzle element surrounding the tube and di d within the sleeve, saidnozzle element orming a rese stricted space of constant uniform cross-sectional areaaround the up r 'end of the tube,

there bein ports in the dy for vadmitting aeriform uid between the nozzle and the tube, the lower end of the nozzle element hava5 ing associated therewith a valve for sealing said ports. p

In testimony whereof I hereunto ax my si ture.

gna LEE J. BLACK. 

